Device for dismountably connecting two intersecting formwork beams

ABSTRACT

The invention relates to a device for dismountably connecting two intersecting formwork beams, which comprises a single-component elastic structure with two intermediate arms joining together respective areas for pressing the two beams together in support areas, and which can longitudinally slide over one of the beams until it reaches the other beam, the device being elastically deformed by means of pressure or impact thereon, so as to clamp or hold both beams and press them together.

The present patent for an invention relates to a device for dismountablyconnecting two intersecting formwork beams, conferring appreciablefeatures of novelty and inventive step.

The formwork beams will be wooden, metal or combined I-beams, i.e., inthe case of combined, they will be formed by a metal portion and awooden portion.

Wooden I-beams are widely used in the construction industry in mostindustrially advanced countries and are intended particularly forsupporting formwork, preferably for roofs.

I-beams, whether wooden, metal or combined, are traditionally installedon two levels, a lower level of beams supported directly by props and anupper level of beams arranged perpendicularly to the former andsupported on the first ones.

Wooden I-beams are normally joined together by nailing. This is alaborious, though effective system which, apart from its simplicity andadaptability, has many drawbacks, such as a shortening of the servicelife of the beams through the deterioration that is caused by the actionof the nails, by disassembly and removal of the nails, which requireconsiderable manpower, and by the fact that it is difficult to quantifythe strength of the joint, since this depends on many variable factors,such as the diameter of the nail, the angle and depth of nailing, thestate of the wood etc.

In addition to the procedure for connecting wooden I-beams by nailing,other connection systems are also known, such as making clamps ofvarious kinds by using threaded bolts and clamping nuts, as well aswedge systems. In all these cases, manual clamping is required, whichtherefore provides discretion and therefore variability.

To overcome the drawbacks mentioned and to produce devices, forconnecting wooden, metal or combined I-beams, having properties of beingeasy to apply, having constant and readily controlled clampingpressures, having little dependency on human action for mounting, theinventor has, after much research and testing, successfully produced anew device for connecting intersecting formwork beams which has theabove-mentioned features together with that of easy recovery from onebuilding site to another, by being easily dismounted without impairingits structural and functional properties.

The device substantially comprises a single-component structure made ofresilient material and having two compression regions separated fromeach other, for simultaneously clamping the two beams to be joined attheir support regions, connecting one of the beams on top of the other,and said compression regions being joined together by intermediate arms.

The present description will refer to wooden I-beams, but the inventionwill also apply equally to combined wooden/steel beams and combinationsof steel beams with wooden beams and/or combined beams.

In a preferred embodiment, the device according to the invention ispreferably made from a metal rod having the necessary properties andthickness for its size and for the task to be achieved, and having asingle-component structure, taking the form of two substantiallyvertical arms that end at the bottom in a U- or V-shaped section thatclasps the lower face of the upper flange of the beam that is locatedbelow in the joint, or the lower face of a beam, said arms ending at thetop in respective straight extensions intended for pressure-couplingonto the lower flanges of the beam located above, in other words, thebeam in the beam joint that is resting on the lower, supporting beam andis intended to receive, on its upper face, the formwork boards for afloor.

Preferably, each of the two assemblies formed by each of theintermediate arms and its corresponding extension ends, at the sideopposite the U- or V-shaped bridge, in an end portion, said end portionsbeing mutually coaxial to allow the device to tilt about the axis ofcoaxiality of the end portions. In especially preferred embodiments, theend portions are perpendicular to the intermediate arms.

The lower bridge, formed by the intermediate arms and the horizontal U-or V-shaped section, fits by means of the latter onto the lower face ofan upper side flange of the beam located below in the joint, acting bypressure through its U- or V-shaped section on the lower side of saidflange or the lower face of the beam. The upper extensions of the devicealso preferably take on a very open U-shaped structure, each of themfitting onto a respective lower flange of the upper beam of the assemblyof two beams that are to be dismountably connected.

The material of the device can be steel or a synthetic material, such asa plastics material or a composite.

The material of the steel device can be a steel having high resilienceproperties, optionally heat-treated, so that once it is applied betweenthe two beams that are to be connected, the pressure exerted on thejoint is constant, ensuring that the two beams are connected andpreventing the upper beam from tipping, especially when workers moveoverhead while mounting the formwork boards.

The device according to the present invention can also be produced inthe form of a single component of folded sheet, forming two lateral armswith their upper edges folded and a lower bridge for pressing on thelower face of the upper flange of one of the lower beams of the assemblyof two beams to be joined.

In summary, the invention comprises a device for dismountably connectingtwo intersecting formwork beams, characterised in that it comprises aresilient single-component structure having two intermediate armsjoining together respective regions for pressing the two beams togetherat support regions, and which can slide longitudinally over one of thebeams until it reaches the other beam and, by means of pressure orimpact on the device, elastic deformation of the device is produced soas to clamp or hold both beams and press them together. Thesingle-component structure can be composed of a rod made of resilientmaterial that has two intermediate arms that extend at their upper endsinto respective extensions for pressing on support regions of one of thebeams to be connected, while at the other end they extend into a U- orV-shaped bridge for pressing on the support region of the opposite beamto be joined.

The two intermediate arms both form double elbows in their upperportion, joined to respective, substantially straight and parallelextensions, or both form double elbows in their upper portion thatextend into respective vertical sections ending in respective straightextensions that are substantially perpendicular to said verticalsections.

In one aspect, the two intermediate arms form between them a slightangle of divergence that opens upwards.

According to another aspect, the U-shaped bridge is planar and theV-shaped bridge has arms that are not planar, but have respectiveelbows, the vertices of which exert pressure on one of the beams in thejoint.

According to another aspect, the upper extensions for pressing on theflanges of one of the beams and the lower bridge for pressing on aflange of the other beam of the joint are positioned so as to convergeslightly.

The device can be slid along one of the beams to be joined by the deviceor tilted over one of the beams to be joined by the device.

According to another aspect, the straight upper ends are capable ofsliding along lateral slots in the upper beams of the joints of twointersecting beams. The slot is made in the wooden flank of the upperbeam of the joint, a combined steel/wooden beam, or the lateral slots inthe upper beam are formed in the lower, steel portion of a combinedbeam.

It is also envisaged that the upper ends of the device are inserted intoholes in the metal portion of the combined upper beam of the joint.

Alternatively, the region of pressure on the flanges of one of the beamsis formed by planar flanges that are joined by lateral connecting platesto a lower joining section that has a wide front extension having aninclined lug, defining the edge pressing on the flange of the other beamof the joint.

Preferably, each of the extensions has a buffer intended to come intocontact with a beam. The buffer can be an elbow.

Preferably, the extensions converge.

In an especially preferable embodiment, the points of contact defined bythe buffers are located on the plane formed by the axis of coaxiality ofthe end portions and the region of the device supporting the other beamat the aforementioned bridge.

Advantageously, the distance between buffers is less than the distancebetween intermediate arms. This feature allows tilting relative to theaxis formed by the upper end portions until the central region of theU-shape comes into contact with the lower face of the bearing beam.

In especially advantageous embodiments, the intermediate arms come intocontact with the side face of the lower, or bearing beam.

In the present description, the position of the bearing beam, whichsupports a beam above it, is described as lower. In some embodiments,the upper beam also, in turn, bears the device.

To aid understanding, explanatory drawings of exemplary embodiments ofthe present invention are included by way of example, and are simplynon-limiting examples.

FIG. 1 is a perspective view of a device according to the presentinvention, showing the upper extensions of the vertical arms positionedfrom front to back.

FIG. 2 is a perspective view similar to that in FIG. 1 in which thedevice has been shown rotated by 90° relative to the view in FIG. 1.

FIG. 3 is a plan view of the device shown in FIGS. 1 and 2.

FIG. 4 is a perspective view of the device according to the invention insheet form.

FIG. 5 is a side elevation view of the device shown in FIG. 4.

FIG. 6 is a perspective view of two I-beams joined at the point ofintersection of a lower beam and an upper beam, by means of a deviceaccording to the present invention.

FIG. 7 is a perspective view from above of the same joint shown in FIG.6.

FIG. 8 is a side elevation view of the individual beam joint shown inFIGS. 6 and 7.

FIG. 9 is a front view of the individual joint.

FIGS. 10 and 11 are both schematic front views of the device coupledonto a beam, in the service position and for transport, respectively.

FIG. 12 is a plan view in which the two beams can be seen positioned asa joint forming a specific angle other than 90°.

FIG. 13 is a side elevation view, in which the initial positioning ofthe connection device on the upper flange of the lower beam of a jointcan be seen.

FIGS. 14, 15 and 16 are each views of the positioning of a deviceaccording to the invention made in sheet form.

FIG. 17 to 20 are views, in perspective, side elevation, front elevationand from above, respectively, of a variant of the device according tothe present invention.

FIG. 21 shows the mounting of the device, connecting two intersectingbeams of the combined type.

FIG. 22 is a perspective view of the device shown in FIG. 17 to 20, inthe transport position on a combined beam.

FIG. 23 is a perspective view of the device coupled into lateral slotsin the metal portion of a combined beam.

FIG. 24 is a side elevation view of a combined beam provided with twodevices according to the variant indicated.

FIG. 25 is an elevation view of the variant device applied to a combinedmetal beam.

FIG. 26 is a perspective view showing the variant device applied toholes made in the metal portion of a combined beam.

FIG. 27 is a perspective view from above of a series of intersectingformwork beams connected by means of the device of the variant version.

FIG. 28 is a perspective view from below of the arrangement shown inFIG. 27.

FIG. 29 is a perspective view of yet another embodiment of a deviceaccording to the present invention.

FIG. 30 is an elevation view of the embodiment in FIG. 29.

FIG. 31 is a side elevation view of the embodiment in FIGS. 29 and 30.

FIG. 32 is a schematic front view of the device in FIG. 29 to 31 coupledto an upper beam, the lower beam not being shown.

FIG. 33 is a plan view in which two beams can be seen positioned as ajoint forming a specific angle other than 90°, using the device in FIG.29.

FIG. 34 is a schematic front view of the device coupled in the positionin FIG. 33, in which, for reasons of clarity, the lower beam has notbeen shown.

FIG. 35 is a perspective view of two devices similar to those in FIG.29, in the position for transporting a beam.

FIG. 36 is a side elevation view of a beam joint produced by means ofthe device in FIG. 29.

As can be seen in FIG. 1 to 3, the device for dismountably connectingintersecting formwork beams, according to the present invention,comprises two arms that diverge slightly upwards -1- and -2-, and arejoined to respective, substantially horizontal sections -3- and -4-,which together with a crosspiece -5- form a U- or V-shaped bridge. Atthe top, the arms -1- and -2- extend into respective straight,substantially horizontal extensions -6- and -7-. The various componentsmentioned, together forming in succession the connection device based ona resilient steel rod, are joined by means of multiple curved elbows,which have not been specifically numbered for greater clarity of thefigures. The straight extensions of the upper portion -6- and -7- end inrespective folded regions -8- and -9- positioned in the same plane asdetermined by the extensions -6- and -7-.

FIGS. 4 and 5 are a perspective view and a side elevation view,respectively, of a version of the device of the present inventionproduced in sheet form, in which it can be seen that the bridge formedby the two vertical components is composed of two vertical, parallelsheet walls -10- and -11- ending at the top in the flanges -12- and-13-, which perform the same functions as the combination of thevertical arms -1- and -2- and upper horizontal extensions -6- and -7- inFIG. 1 to 3. The sheet components -10- and -11- are joined together atthe bottom by the horizontal section -14- that extends into a wide frontextension -15- ending in a flange -16- that is gently tilted downwards,said components -14-, -15- and -16- as a whole performing the samefunction as the horizontal, U-shaped sections -3-, -4- and -5- of theversion in FIG. 1 to 3.

The device according to the present invention is intended fordismountably connecting two intersecting formwork beams, being I-shapedwooden, metal or combined beams, for example, the beam located below-17- and the beam located above -18-, shown in FIG. 6 to 9, the beam-18- resting on the beam -17- and being intended to receive the formworkboards on its upper face -19-. The joint is made by interposing thedevice according to the present invention, firmly and resiliently,because of its specific features, joining the upper flange -20- of thebeam located below to the lower flanges -21- of the beam -18- locatedabove. For this, the crosspiece -5- is supported, exerting pressure onthe lower face of the flange -20- of the beam -17-, while the horizontalstraight extensions, such as the extension -6- with its end portion -8-and an elbow region that joins it to the vertical arm -1-, press on theupper face -22- of the lower flange -21- of the I-beam -18-, locatedabove in the beam joint formed by the beams -17- and -18-.

FIG. 10 shows the positioning of the device according to the inventionon the lower flanges of the beam -18-, in the position prior to mountingon the lower of the beams constituting the pair of beams to be joined.

FIG. 11 shows the positioning of the device according to the inventionin a similar way to FIG. 10, but in the transport position, in which thedevice is gently press-fitted between the flanks of the lower flanges ofthe beam -18-. For this, the vertical arms -1- and -2- have a slightangle of convergence, to facilitate their resilient action in saidsemi-wedged position.

FIG. 12 shows one of the features of the device according to theinvention, which allows slight non-alignment of the usual right-angledarrangement of the beams to be joined, in which situation the structureof the device allows it to continue performing its clamping functionirrespective of said divergence of angle. It should be noted that bothin the situation shown in the figure and in the case where the device isinserted only partially into its service position, for example in thepositions shown in FIG. 6 and 7, where the elements -5- and/or -6- donot go right to the end, i.e. they are inserted only partially overtheir corresponding bearing surfaces, the compression force of thedevice would not vary, which provides heightened safety features.

It should also be noted that, given that the compression force exertedby the device according to the invention depends on its own structure,said exerted force will be independent of the force required to insertthe device on mounting, for example, greater or lesser energy at thetime of mounting. The essential feature for the device to perform itsfunction consists solely in the pressure components, i.e. for example,the components -5- and -6-, being located above the surfaces to becompressed, irrespective of the greater or lesser degree of penetrationonto the latter, or the angle relative to said surfaces to be pressedtogether, which can vary because of the non-alignment of the beams to bejoined or because of a certain divergence of the device itself at thetime of mounting.

FIG. 13 is a view of the positioning of the device producing the jointof an upper beam -18- with a lower beam -17-, in which it can be seenthat the substantially horizontal sections, here the horizontal section-3- is shown, form a small angle to the horizontal, i.e. convergeslightly relative to the straight extensions -6- and -7- (the latter notshown in said FIG. 13), so as to exert a spring effect when insertedunder the upper flange of the beam located below, i.e. the beam -17-.The chamfers at the edges of the beams and the rounding of all theangles and outer regions of the device of the invention allow them to beinserted easily by pressure, without the need for any tool. In thisrespect, one of the advantageous features of the present invention canbe seen, since its single-component nature and its properties ofspring-like resilience make it easy to position, and allow it to pressevenly and continuously on the components of the beams to be joined,with very simple application using basic tools such as a constructionhammer and the like, with no need to tighten nuts, brackets or othercomponents that are used by hand.

FIGS. 14, 15 and 16 show the mounting of a device according to theinvention, made in sheet form, as has been shown in detail in FIGS. 4and 5. As can be seen in FIG. 14, the device is applied such that theupper flanges, for example the flange -13-, are applied to the upperface of the lower flanges -23- of the beam -24-, located above, whilethe lower extension -15- presses on the lower face of the upper flange-25- of the beam located below -26 -.

FIG. 17 to 28 show a variant of the device having a V-shaped bridge andstraight, parallel upper extensions, which will be explained below.

Said device has two intermediate arms -27- and -28- similar to the arms-1- and -2- of the variant in FIG. 1 to 3, which extend into thesections -29- and -30- that feature an intermediate curve or fold, forwhich reason they take on a very open V-shape, forming respectivecontact regions or vertices -31- and -32-. Said sections -29- and -30-are joined by a rear crosspiece -33-, which is shorter than the distancebetween the arms -27- and -28-, so that the lower bridge takes on ashape similar to a V since the sides -29- and -30- open up from theirstarting point at the crosspiece -33- to their endpoint at the lowerportion of the arms -27- and -28-. At the top, the arms -27- and -28-have respective double elbows -34- and -35-, -34′- and -35′-, extendinginto vertical sections -36- and -37-, which end in short upper straightsides -38- and -39- having respective elbows -40- and -41- placed inbetween.

The coupling of the device can be seen from FIG. 21 onwards, with theexample of connecting two combined beams, a lower beam having a metalportion -42- and a wooden portion -43- and an upper beam, also combined,having a metal portion -44- and a wooden portion -45-. The device isguided by its upper ends -38- and -39- shown in FIG. 17 to 20, which areinserted into lateral slots such as the slot -46- in the wooden portion-45-, pressing on the upper face of the metal portion -44-. The lowervertices, such as the vertex -32- can be seen pressing on the lower faceof the metal portion -42- of the lower combined beam.

The device of this variant can tilt as shown in FIG. 22, so as to belocated in a stacked position in which it is semi-wedged against theflanks of the combined beam.

FIG. 23 to 25 show the use of the device in a combined beam, the metalportion -47- of which has lateral slots -48- into which the ends of thedevice shown in FIG. 17 to 20, i.e. the ends -38- and -39-, areinserted. The other components are located in a similar manner to thepositioning version shown above.

FIG. 24 shows the arrangement of FIG. 23, in which two symmetricallyshaped connecting devices are arranged on the metal portion -47- of thecombined beam.

FIG. 25 shows the mounting of the device on the metal portion of acombined beam, which can be the one shown from FIG. 21 onwards, showingthe positioning of the device with its arms -27- and -28- divergingslightly upwards.

FIG. 26 is a perspective view in which the devices of the variantexplained are coupled to respective holes of the metal portion -49- of acombined beam.

The mounting of the device on assemblies of beams can be seen in FIGS.27 and 28, showing the mounting of multiple connection devices -50-,-50′-, -50″- between a lower combined beam -52- and multiple uppercombined beams -51-, -51′-, -51″- as explained above.

FIG. 29 to 36 show an additional embodiment of the device of the presentinvention and various examples of its use. Throughout said figures,components that are the same or equivalent have been identified with thesame reference numerals.

The device shown in FIG. 29 to 31 is a resilient device formed from arod, for example a metal rod or the like, and also has two intermediatearms -101-, -102- that join respective regions intended to press onrespective formwork beams to be connected.

As in the examples shown above, the final portion of the extensions atthe end of the intermediate arms -101, -103-, or the end portions -108-,-109- of the device, are composed of respective coaxial straightsections. The coaxiality of the end portions -108-, -109- allows thedevice to tilt about the coaxial axis, allowing the device or part to be“parked” or “concealed” even at the outermost region of the beams -118-that bear them, thereby facilitating storage and transport.

The coaxial nature of the end portions -108-, -109- also has the effectof making it easier for the device to absorb angles between the upperbeam -118- and the lower beam -117- that differ substantially from 90°,with a reduced risk of the device coming out (for example, one of thetwo end portions coming out of the groove -146-) and ceasing to act onone of the two beams.

The embodiment in FIG. 29 to 31 also has buffers -161-, -161′- forresilient contact with the beam. These buffers are located close to theend portions -108-, -109- and on the inner face of the intermediatearms. In the example shown, the buffers -161-, -161′- are located at theend portion of the sections -136-, -137-, which constitute an almostvertical extension of the main section of the intermediate arms -101-,-102- after the double elbow -134-, -135-, -134′-, -135′-. The buffers-161-, -161′- of the example consist of respective elbows, although theycould, for example, be a protuberance or a specific part. The buffers-161-, -161′- define the minimum distance between the intermediate arms.This is achieved because the sections -136-, -137- of the intermediatearms -101-, -102- form between them an angle of divergence, openingdownwards in this case. As will be understood, for optimal use, thedistance between buffers -161-, -161′- has to be less than the width ofthe bearing beam to which the device is joined, such that, onceinstalled, said arms exert pressure on the flanks of the beam.

In this case, as can be observed clearly in FIG. 31, the buffers arecoplanar with the plane defined by the axis of coaxiality of the endportions -108-, -109- and the lower region of the device supporting thelower beam (in this case, the crosspiece -105-).

By virtue of the aforementioned coplanarity, the device is able toprovide a significant axis relative to an axis perpendicular to thecontact surface between the two beams, fully maintaining the support ofthe end portions -108-, -109-, as can be observed in FIGS. 33 and 34.This provides the possibility of installing said device on beams thatintersect at angles other than 90°, simultaneously maintaining theperformance of the joint since the device rotates relative to the beamthat carries it and fits perfectly on the lower beam, as it would onperpendicular beams (at 90°). This proves especially important when thelower beam -117- is supported via a flange -190- that is not very deep.

The greatest distance between the inner faces of the intermediate arms-101-, -102- is preferably greater than the width of the beam -118-bearing it (or upper beam). Two effects are thereby achieved. First ofall, the region where the device contacts the lower beam -118- (in thiscase, the crosspiece -105-) is larger, providing greater stabilityagainst tipping of the beam -118- bearing it. Secondly, the device canthereby tilt easily at any point on the beam -118- that carries it untilthe central arm of the supporting U-shape (crosspiece -105-) comes intocontact with the lower face of said beam -118-, being thereby protectedfrom any impact it might suffer in the event of the beam falling to theground.

After the sections -136-, -137- and double elbows -134-, -135-, -134′-,-135′-, the main sections of the intermediate arms -101-, -102-preferably lie parallel to the side face of the lower beam -117- (seeFIG. 36). More preferably, they will be in contact with said side face.This provides a region where the device can be struck and forced in whenit contacts the lower beam -117-.

From this point onwards, the intermediate arms -101-, -102- areseparated from the side face by respective distancing sections -151-,-152- until, by means of elbows -153-, -154-, they connect with the U-(or V-)shaped section that clasps the lower face of the flange -190- ofthe lower beam -117-. In this case, said U-shaped section is formed bythe crosspiece -105- and the connecting sections -103-, -104-. Onaccount of the separation provided by the distancing sections -151-,-142-, a region of greater resilience is produced, which facilitates theuse of a smaller-diameter rod for the device and allows a tool to beused for separating the device from the lower beam -117-, for example bystriking the region of greater resilience (for example, at one of theelbows -153-, -154-), which will cause the device to separate slightlyfrom the beam due to a resilient reaction produced in response to theblow.

It will be observed that the device according to the present inventionhas features that are highly beneficial for its intended function in theconstruction industry. Indeed, as can be deduced from the above, the newdevice allows fast and economical manufacture, and when coupled to ajoint of I-beams, whether wooden, metal or combined, brings greatsafety, given that the clamping it provides is independent of theposition and force of mounting, but depends solely on the properties ofthe device itself. The device can be mounted very easily and quickly,being incorporated into one of the beams of the joint and travellingalong the flanges thereof so as to be connected below the flange of theother beam forming the joint, coming into elastic deformation andthereby pressing one beam against the other. It also allows beams to bejoined with a certain amount of variation in angle relative to theperpendicular.

It will be understood that the construction of the device according tothe invention, shown in one example in the shape of a rod and in anotherexample as a sheet component, could take on various structures whilepreserving the functional features according to the invention. Thus, forexample, instead of rods, tubes or a combination of tube and rod can beused. Similarly, combined sheet/rod, or sheet/tube versions could beenvisaged. Thus, for example, the upper straight extensions that extendfrom the vertical arms in the rod-based embodiment could be substitutedby a flattened region made in the same straight extension or by weldingon a sheet.

It should also be noted that although the examples show the devices forconnecting the I-beams sliding over an upper beam of the two beamsforming a joint, an opposite arrangement could also be envisaged, inwhich they slide over the lower beams while connected to the upper beamsof the joint.

It should also be noted that the device according to the invention can,because of its specific properties, be easily recovered and appliedlater to other joints, since its properties do not in practice vary withuse.

Notable, too, are the heightened safety features provided by the joint,ensuring a firm, stable connection of the two beams forming the jointand preventing the upper beam from tipping, for instance when personnelare moving around or in similar circumstances.

To successfully apply the device to the joint formed by two beams,taking advantage of the resilience of the material of the device, forexample a steel sheet or rod, having spring-like resilient properties,the components intended to exert pressure initially form a small angleto the surfaces on which they have to press. Thus, for example, thelower U-shaped bridge forms a specific angle of convergence relative tothe upper straight extensions, so that the correct amount of pressure isproduced on the horizontal section of the lower bridge and the upper,straight extensions.

In the same way, a specific angle of divergence can be formed betweenthe vertical arms of the device and the upper straight extensions in theplane that they define together with the elbows joining the verticalarms and the outermost prolongations of said extensions.

Given the features of the device according to the invention, theclamping force exerted on the flanges of the beams to be joined does notvary on account of the effect of any vibrations exerted on the assembly,as can happen in devices that include threaded parts with nuts orsimilar components or other mountings.

Although the invention has been described on the basis of representativeexamples, it should be understood that they are not restrictive and thatthe invention will be limited solely by the scope of the attachedclaims. Furthermore, it is clear that, after becoming aware of thepresent invention through its description, claims and drawings, personsskilled in the art will be able to introduce multiple modificationswhich, if they do not depart from the spirit of the invention, will beincluded in the scope thereof.

1. A device for dismountably connecting two intersecting formwork beamscomprising a resilient single-component structure having twointermediate arms joining together respective regions for pressing thetwo beams together at support regions, wherein the resilientsingle-component structure is configured to slide longitudinally overone of the beams until reaches the other beam and, by means of pressureor impact on the device, elastic deformation of the device is producedso as to clamp or hold both beams and press them together.
 2. The deviceaccording to claim 1, wherein the single-component structure is composedof a rod made of resilient material that has two intermediate arms thatextend at their upper ends into respective extensions for pressing onsupport regions of one of the beams to be connected, while at the otherend they extend into a U- or V-shaped bridge for pressing on the supportregion of the opposite beam to be joined.
 3. The device according toclaim 2, wherein each of the two assemblies formed by each of theintermediate arms and its corresponding extension ends, at the sideopposite the U- or V-shaped bridge, in an end portion, said end portionsbeing mutually coaxial to allow the device to tilt about the axis ofcoaxiality of the end portions.
 4. The device according to claim 2,wherein the two intermediate arms both have double elbows in their upperportion, being joined to respective, substantially straight extensions.5. The device according to claim 4, wherein the two intermediate armsboth form double elbows in their upper portion, which extend intorespective vertical sections ending in respective straight extensionsthat are substantially perpendicular to said vertical sections.
 6. Thedevice according to claim 1, wherein the two intermediate arms formbetween them a slight angle of divergence that opens upwards.
 7. Thedevice according to claim 2, wherein the aforementioned bridge is aplanar U-shaped bridge.
 8. The device according to claim 2, wherein thebridge is a V-shaped bridge and has arms that are not planar, but haverespective elbows, the vertices of which exert pressure on one of thebeams in the joint.
 9. The device according to claim 4, wherein theupper extensions for pressing on the flanges of one of the beams and thelower bridge for pressing on a flange of the other beam of the joint arepositioned so as to converge slightly.
 10. The device according to claim3, the intermediate arms comprise a buffer intended to come into contactwith a beam and located at the end portion of the sections that form aquasi-vertical extension of the main section of said intermediate arms.11. The device according to claim 10, wherein the buffer is an elbow.12. The device according to claim 10, wherein the sections thatconstitute an extension of the main section of said intermediate armsconverge.
 13. The device according to claim 10, wherein the points ofcontact defined by the buffers are located on the plane formed by theaxis of coaxiality of the end portions and the region of the devicesupporting the other beam at the aforementioned bridge.
 14. The deviceaccording to claim 10, wherein the distance between buffers is less thanthe distance between intermediate arms.
 15. The device according toclaim 1, wherein the support regions of the intersecting beams to bejoined are formed by the upper or lower flanges of the I-beams.
 16. Thedevice according to claim 1, wherein the material of thesingle-component structure is steel.
 17. The device according to claim16, wherein the material of the structure is a steel that has highlyresilient properties.
 18. The device according to claim 1, wherein thematerial of the structure is a synthetic material, a plastics materialor a composite.
 19. The device according to claim 1, wherein the forcefor simultaneously clamping the two beams to be joined is independent ofthe positioning in terms of angle or depth of the device relative to thebeams to be joined.
 20. The device according to claim 1, wherein theforce for simultaneously clamping the two beams to be joined isindependent of the force for positioning said single-component structureonce positioned on the beams to be joined.
 21. The device according toclaim 3, wherein the straight upper ends are capable of sliding alonglateral slots in the upper beams of the joints of two intersectingbeams.
 22. The device according to claim 21, wherein the slot in theupper beam is made in the wooden flank of the upper beam of the joint, acombined steel/wooden beam.
 23. The device according to claim 21,wherein the lateral slots in the upper beam are formed in the lower,steel portion of a combined beam.
 24. The device according to claim 1,wherein the region of pressure on the flanges of one of the beams isformed by planar flanges that are joined by lateral connecting plates toa lower joining section that has a wide front extension having aninclined lug, defining the edge pressing on the flange of the other beamof the joint.